Pump.



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WITNESSES.-

C\ T. HARDING.

PUMP.

APPLICATION FILED 056.28, 1914.

Patented Dec. 28, 1915.

3 7 mum/r01? I CharlesTHarding 3G %44 WJ6 AT UR/VEVS Cir CHARLES TAYLOR HARDING, OF FAYETTEVILLE, ARKANSAS.

Specification of Letters Patent.

Patented Dec. 22, 1215..

Application filed December 28, 191%. serial No. 879,296.

vantages of the invention are by no means to be so limited in their adaptation for practical purposes. 4'

Among the objects of the invention is to provide a plurality of pumps such, for example, as a reciprocating air pump for charging the compressed air tank, and a rotary pump for causing positive circulation of water through the radiator and other parts of the machine, such pumps to be operated simultaneously or otherwise from a single source of power, peculiar means he- "ing provided to control the operation of the pumps from said source of power.

The foregoing and other objects of the invention will hereinafter be more fully described and claimed and illustrated in the drawings forming a part of this specification in which like characters of reference indicate corresponding parts in all the views, and in which I Figure 1 is an elevation of the left side of the front end of an automobile, showing my improvement and with certain parts be ing broken away; Fig. 2 is a vertical longi* tudinal section of the pump mechanism on a larger scale than is shown in Fig; 1; Fig. 3 is a vertical transverse section on the line 33 of Fig. 2'; and-Fig. 1 is a sectional view of a detail on the line %4 of Fig, 2,,

The several parts of this device may be made of any suitable materials, and the relative sizes and proportions, as well as the general design of the mechanism, may be varied to a considerable extent without departing from the spirit of the invention hereinafter more fully described and specifically claimed.

Referring more particularly to the drawings, I show at 10 a portion of an automobile chassis in which isseoured a motor 11 having any usual or preferred type of water jacket surrounding it, and at 12 1' show a motor craft. At this shown a conventional form of radiator through which the water from the engine jacket is crew lated through pipes 1 1, 15 and 16 preferably in the direction indicated by the arrows on Fig. 1. 1

Arranged at any suitable place, preferably between the radiator and the motor, -is a pump casing 17 of peculiar construction and through which the water circulates.

The pump mechanism includes an air pump including a cylinder 18 and a reciprocating piston 19. A crank shaft 20 journaled in the casing 17 operates the piston 19 through a connecting rod 21. The purpose of the reciprocating pump is to supply. compressed air to a tank 22 for the purpose of operating the starter (not shown), or for any other purpose about the machine, such as the inflation of the tires. The air is drawn into the cylinder 18 through a port 23 guarded by a check valve 2 1, and it is forced from the cylinder on the upstroke of the piston through a port 25.and a pipe 26,

a check valve 27 of any suitable type preventing the return into the cylinder. It will be noted that the cylinder 18 is spaced from the main wall of the casing 17 and through the space the water passes while circulating between the radiator and the engine jacket and whereby the cylinder 18 is prevented from becoming too hot.

Another feature of the pump mechanism is a rotary or centrifugal pump 28 secured 'upon a-quill or hollow shaft 29 constituting in effect a continuation of the crankshaft 20, or arranged in coaxial alinement therewith.

The function of this pump 28 is to force a positive circulation of the water through the to. An suitable means may -b'e providedto radiatogind cooling jackets above referred operate t e centrifugal pump and the crank shaft from the main motor shaft 12. I showfor this purpose, however, a gear wheel-30 secured to the quill 29 and operated by means of a sprocket chain 31 from the motor shaft.

The rotation of the motor shaft, therefore, in

a certain direction serves to drive thejpump wheel 28 in a correspondin direction',,causing the water to circulate. gince the reciprocating pump is operated infrequently or periodically with respect to the water circulating pump, ll provide a means whereby the air pump may be operated when desired or disconnected when not needed. For this purpose it show a rod 32 slidable coaxially of the quill 29 and havingon its inner end a key 33 adapted to span the space between cooperating notches 3% and formed in the adjacent ends of the quill and the crank shaft respectively. In other words, the rod isadapted to be reciprocated in and through the quill for the purpose of causing the key 33 to extend into the notch 35 or to be withdrawn therefrom, thereby connecting or disconnecting the two shafts for simul- ,taneous operation. The outer or rear end of the rod is provided with collars 36 between which a yoke 37 of a bell crank 38.

spaced from the outer. wall thereof whereby the water circulates around it within the casing, means to operate the rotary pump and means to cause the air pump to be connected in the same'operating mechanism for simultaneous action.

2. In a pump mechanism for automobiles, the combination of an air pump including a stationary cylinder and a reciprocating piston, a main casing sin-rounding and spaced from the cylindenand through which water is adapted to circulate around said cylinder, a crank shaft journaled in the casing and connected to the piston, an auxiliary pump journaled in the casing with its axis in alinement with the crank shaft and serving to cause positive circulation of the water, and means to actuate the auxiliary pump and crank shaft simultaneously.

3. In a pump mechanism for automobiles, the combination of a main casing through which water is adapted to circulate through the radiator and engine jacket, an air pump Within the casing and around which the .water may circulate, a crank shaft journaled in the casing for operating the air pump, a quill journaled in the casing in axial alimement with the crank shaft, the adjacent ends of the quill and crank shaft being formed withnotches, a key adapted to be carried in the notch of the quill or to be projected par tially therefrom into the shaft notch, means acting through the quill to control the position of the key, an auxiliary pump secured to the quill, and means to rotate the quill and auxiliary pump.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

CHARLES TAYLOR HARDING.

Witnesses:

F. S. RAEDELS, F. P. HALL. 

